<template>
  <div>
    123
    <h1>{{ a }}</h1>
    <module-name v-model:title="a"></module-name>
    <router-view></router-view>
  </div>
</template>

<script>
import moduleName from "./three";
export default {
  components: {
    moduleName,
  },
  data() {
    return {
      a: 1,
    };
  },
};
</script>

<style>
h1 {
  color: red;
}
</style>
